Vortex EF2241 Reference Manual
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Introduction
Welcome How to Use This Manual
INTRODUCTION
Product Registration
PRODUCT FEATURES
Product
Inputs and Outputs Remote Control
PRE-INSTALLATION
Tools Needed for Installation
What’s Included
What’s Not Included
EF2241 FRONT AND REAR PANELS
10. INPUT PARALLEL PORT. Parallel logic input
INSTALLATION
CONNECTING THE EF2241 TO OTHER EQUIPMENT
Recommendation For Easy Access
Instructions for Securing Power Supply to Back of EF2241
Typical EF2241 Connections
DEVICE IDS ON THE EF BUS
CONNECTING MULTIPLE VORTEX DEVICES
Note. The EF Bus must be connected so that the EF Bus In of one
FACTORY DEFAULT SETTINGS PRESET
Terminating the EF2241
INSTALLATION
Preset
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Technical Support
Pick a Standard Signal Level
Presets and Multiple Vortex Devices
CHECK SURROUNDING EQUIPMENT
Configure the matrix mixer input from the codec output. The input
Configure Program Audio Sources
INPUT SETTINGS
Select Phantom Power for Inputs
INTEGRATING THE EF2241 INTO YOUR SYSTEM
CALIBRATION
Set Levels on Line Input Channels
ADJUST THE INPUT GAIN IN THIS WAY
IF THE AGC METER SHOWS
SET UP THE PHONE INTERFACE
BUILD YOUR ECHO CANCELLER REFERENCE
ECHO CANCELLER REFERENCE FOR MULTIPLE VORTEX DEVICES
Customize Setting for Your Particular Application
Setting up the
Bus Reference
Vortex device
If all far end audio and program audio sources are on the same
CONFIGURE THE AUTOMATIC MICROPHONE MIXER
Automixer Parameters
Global Settings
Mixer Settings
AUTOMIXER SETTINGS FOR MULTIPLE VORTEX DEVICES
Channel Settings
CONFIGURE THE MATRIX MIXER
Automixer and Bus Mixer Settings Operating as an Independent
Default Settings
BUILDING YOUR SYSTEM WITH MULTIPLE VORTEX DEVICES
3. Configure the submatrix
1. Assign Inputs 2. Assign Outputs
THE EF BUS
THE EF BUS
PRESETS
OTHER EF2241 FEATURES
4. Configure Your Echo Canceller Reference
THE EF BUS
LCD MENU STRUCTURE
LCD Menu Tree
must be flashing. To make the parameter flash assuming the front panel is not locked press ENTER. Once the parameter is flashing, use the UP and DOWN buttons to adjust the parameter value. The parameter is instantly updated while it is being adjusted - you should hear changes as the parameter is changing. RS-232 control strings are also sent via the RS-232 port so your remote control device is instanta- neously updated as well. Press ENTER to select and store the parameter value or press ESC to cancel the selected value and return to the old value. Pressing HOME has the effect of pressing ESC then HOME, so the selected value will be cancelled and the menu will return to the top of the menu tree
SYSTEM MENU
Figure 17. EF2241
PHONE CONTROL
INPUTS
Automatic Gain Control Inputs 1-4, T. This enables automatic gain con
Figure 19. EF2241
OUTPUTS
AUTOMIXER MENU
Global Settings Mixer Settings Channel Settings
Outputs
Global Settings
Global Settings
Automixer
Decay Hold Time Camera Gating Threshold
Mixer Settings
Channel Settings
Mixer Settings AM1/AM2 Bus ID Chairman Mode Chairman Mic
Last Mic On Mode Last Mic Number Local Max NOM Global Max NOM
MATRIX MENU
Matrix
Main Matrix
SubMatrix
PARAMETRIC EQ MENU
Input/Output EQ Channel Band
MACROS
PRESETS
Presets
Figure 25. EF2241
TROUBLESHOOTING
AUTOMATIC MICROPHONE MIXER
No microphones are gating Some microphones are not gating
Too many microphones are gating
ECHO CANCELLER REFERENCE
MATRIX MIXER
RESIDUAL ECHO
Room Audio Sounds Choppy
Finding the Source of Echo Room Gain
Excessive Room Gain
Figure 28. Room Gain
In-Conference Quick Check Excessive Microphone Amplification
Insufficient
Microphone
Amplification
Nonlinearity
CONTACTING TECHNICAL SUPPORT
Email vortex@polycom.com
TECHNICAL SPECIFICATIONS
MECHANICAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
PERFORMANCE SPECIFICATIONS
USA and Canada
COMPLIANCE
US Telco requirements
Automatic Dialing Telco Connector
Canadian Telco Requirements
Australia
Mains powered POT’s Voice Telephony without Emergency 000 dialing
Installation Instructions
Rest of World
TECHNICAL SPECIFICATIONS
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VORTEX EF2241 Reference Manual
Technical Support
CE Mark R& TTE Directive
Declaration of Conformity
Konformitetserklæring
Konformitätserklärung
VORTEX EF2241 Reference Manual
Technical Support
Noise and Reverberation Consider Room Gain
CONFERENCE SYSTEM DESIGN
Figure 29. Room Gain
EF2241 BLOCK DIAGRAM
EF2241 BLOCK DIAGRAM
EN Echo Canceller, Noise Canceller
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CONNECTOR PINOUTS
EF Bus
Cat-5 Plug Pinout
RJ11 Plug Pinout
Power Supply Input
Input/Output Remote Control Port
Mic/Line Inputs, Line Inputs, Line Outputs
CONNECTING UNBALANCED RCA TO BALANCED MINI PHOENIX
MAKING AN EF BUS TERMINATOR
Instructions
1 2 3 4 5 6 7
ADDITIONAL NOTES
What is covered For how long What we will do Limitations
WARRANTY INFORMATION
What we ask you to do
State Law Rights
What this warranty does not cover
No User Serviceable Parts
Echo Canceller
DEFINITION OF TERMS
Acoustic Echo
Acoustic Gain Ambient Level Automatic Gain Control AGC
EF Bus Equalization Line Echo Macros Matrix Mixer Noise Cancellation
NOM NOM Attenuation NOM Bus Presets Room Gain
room gain of this microphone channel is said to be 0 dB. If the reflected signal picked up by the microphone is higher than the level of the signal sent to the line output to your amplifier, that microphone channel has positive room gain. The more positive the room gain, the harder the AEC must work to determine which signal is an echo and which is a local speech signal
INDEX
Mic/Line Inputs, Line Inputs, Line Outputs
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Polycom, Inc Installed Voice Business Group
1725-80098-001-C
1720 Peachtree Street NW, Suite 220 Atlanta, GA
Phone 800 932-2774, 404